Class: LiveAST::RubyParser

Inherits:
Object
  • Object
show all
Defined in:
lib/live_ast/ruby_parser.rb,
lib/live_ast/ruby_parser/test.rb,
lib/live_ast/ruby_parser/unparser.rb

Defined Under Namespace

Modules: Test, Unparser

Constant Summary collapse

STOREABLE_SEXP_TYPES = 
[:defn, :defs, :iter].freeze

Instance Method Summary collapse

Instance Method Details

#parse(source) ⇒ Object

Returns a line-to-sexp hash where sexp corresponds to the method or block defined at the given line.

This method is the only requirement of a LiveAST parser plugin.



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# File 'lib/live_ast/ruby_parser.rb', line 12

def parse(source)
  @defs = {}
  process ::RubyParser.new.parse(source)
  @defs
end

#process(sexp) ⇒ Object 



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# File 'lib/live_ast/ruby_parser.rb', line 20

def process(sexp)
  store_sexp(sexp, sexp.line) if STOREABLE_SEXP_TYPES.include? sexp.first

  sexp.each do |elem|
    process(elem) if elem.is_a? Sexp
  end
end

#store_sexp(sexp, line) ⇒ Object 



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# File 'lib/live_ast/ruby_parser.rb', line 28

def store_sexp(sexp, line)
  @defs[line] = @defs.key?(line) ? :multiple : sexp
end